<? 
include"../inc/config.inc.php";
if($_POST[MODE]=="ADD")
{
    $subject_id     =$_POST['subject_id'];
    $subject        =$_POST['subject'];
    $subject_point  =$_POST['subject_point'];
    $subject_unit   =$_POST['subject_unit'];
    $sql="insert into subject (subject_id,subject,subject_point,subject_unit) values('$subject_id','$subject','$subject_point','$subject_unit')";
    mysql_query($sql) or die (mysql_error());
    echo"<meta http-equiv='refresh' content='0;URL=subject.php'>";
}
if($_GET[MODE]=="DEL")
{
    $subject_id     =$_GET['subject_id'];
    $subject        =$_GET['subject'];
    $subject_unit   =$_GET['subject_unit'];
    $sql="delete from subject where subject_id='$subject_id'";
    mysql_query($sql) or die (mysql_error());
    echo"<meta http-equiv='refresh' content='0;URL=subject.php'>";
}
if($_POST[MODE]=="EDIT")
{
    $subject_id     =$_POST['subject_id'];
    $subject        =$_POST['subject'];
    $subject_point  =$_POST['subject_point'];
    $subject_unit   =$_POST['subject_unit'];
    $sql="UPDATE subject set subject_id='$subject_id',subject='$subject',subject_point='$subject_point',subject_unit='$subject_unit' where subject_id='$subject_id'";
    mysql_query($sql) or die(mysql_error());
    echo"<meta http-equiv='refresh' content='0;URL=subject.php'>";
}
?>